Should I check the MOT history before buying a 2019 Mercedes Benz B Class?

Yes. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. A full MOT history analysis will highlight patterns that a single test result won't reveal.

What corrosion should I look for when inspecting a 2019 Mercedes Benz B Class?

Check brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that is expensive to fix and can fail an MOT.

How are tyres and brakes typically on a 2019 Mercedes Benz B Class?

Tyres and brakes are the most common advisory items on vehicles of this age. Budget for replacement if they are near the limit, and factor this into your offer price.

Is the 2019 Mercedes Benz B Class reliable?

Based on MOT data from 571 vehicles, the 2019 Mercedes Benz B Class has a first-time MOT pass rate of 92.5%, indicating generally reliable for its class. Always check the full MOT history of any specific vehicle before buying.

What are common problems with the 2019 Mercedes Benz B Class?

The most frequently recorded MOT issues on the 2019 Mercedes Benz B Class are: Offside Front Tyre worn close to legal limit/worn on edge (29.7% of vehicles), Nearside Front Tyre worn close to legal limit/worn on edge (27.5% of vehicles), Front Brake pad(s) wearing thin (17.9% of vehicles). These figures are based on actual MOT test records — search a specific registration on CarHunch to see its individual history.

Do I need an HPI check when buying a 2019 Mercedes Benz B Class?

Yes. The MOT history will not show outstanding finance, insurance write-offs, or stolen status. An HPI check covers these areas and should be part of any used car purchase.

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Mercedes Benz B Class (2019)

571 real MOT outcomes analysed • 92.5% first-time pass rate

2019 Mercedes Benz B Class

CarHunch analysed 571 real MOT records for the 2019 Mercedes Benz B Class. Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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AI Analysis Reliability Overview Common Issues Check a Specific Reg Buyer's Checklist Pass Rate by Fuel Mileage Distribution Still on the Road MOT Averages Colour Breakdown Compare Models

The 2019 Mercedes-Benz B-Class is a strong performer at MOT, with a 92.5% first-time pass rate well above the UK average of 80%, and petrol and diesel variants are nearly identical in reliability. Only 13.3% of vehicles have ever recorded a dangerous defect, which is reassuring and below the threshold for real concern.

These cars are running relatively light mileage for their age—averaging 26,467 miles—suggesting they've been well-looked-after so far. The low failure rate of 0.43 per vehicle is excellent, though the average of 2.8 advisories per test indicates minor wear items are creeping in; when shopping, ask the seller for the full MOT history to check what those advisories are, particularly around suspension and trim components common to this model.

The 2019 Mercedes Benz B Class passes its MOT first time more often than most UK vehicles (92.5% vs ~80% average) — and when it does fail, it's usually something minor and cheap to fix.

⚠️ Around 1 in 8 of these vehicles have had a dangerous MOT failure at some point — usually tyres or brakes, and often a one-off issue rather than a persistent problem. The group stats won't tell you which one you're looking at.

First-time pass

92.5%

UK average ~80%

Better than average

Dangerous (ever)

13.3%

At least once in MOT history

Check this vehicle

Avg failures / car

0.43

Over 4.8 tests on record

Low

Typical mileage

23k

Middle half: 16k–31k

For context

✅ Good baseline reliability. A 92.5% first-time pass rate puts this well above the UK average — it's a well-sorted vehicle in this age bracket.

🔧 Expect consumable spend. An average of 2.8 advisories per vehicle tells you wear items (tyres, brakes) get flagged regularly. Budget for them — they're not surprises.

🔍 The dangerous defect figure is real. Most are one-off tyre failures or brake issues — not structural problems. But it's exactly why checking the individual vehicle's history is essential, not optional.

These stats describe 571 vehicles as a group. The specific vehicle you're looking at could be the one good example or the one outlier. Run its registration to find out.

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What tends to go wrong

Across 571 vehicles — figures show how many had each issue flagged at least once in their MOT history.

Tyre wear 29.7%

Offside Front Tyre worn close to legal limit/worn on edge · Nearside Front Tyre worn close to legal limit/worn on edge · Offside Rear Tyre slightly damaged/cracking or perishing · …

Budget for a full set — on a vehicle this age, tyres are expected consumables. An inspection will confirm how much is left.

Brake wear 17.9%

Front Brake pad(s) wearing thin · Rear Brake pad(s) wearing thin · Front Brake disc worn, but not excessively · …

Ask the seller when brakes were last serviced. If they don't know, factor in the cost.

Other issues 7%

Nearside Rear Child Seat fitted not allowing full inspection of adult belt · Windscreen damaged but not adversely affecting driver's view

Lighting 3.5%

Supplementary restraint system warning lamp indicates a fault

Usually cheap to fix. Worth confirming all lights work before collecting.

Data covers a 3-year window centred on 2019.

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 571 Mercedes Benz B Class cars.

Before you buy a 2019 Mercedes Benz B Class

Based on MOT data from 571 vehicles — here's what to check.

📋 Check the full MOT history. 13.3% of these vehicles have had a dangerous defect recorded - recurring advisories often signal problems years before they become failures.
Search the reg on CarHunch for the full MOT history, reliability stats and a free AI-powered analysis of that exact vehicle.
🔍 Brake pipes, sills and subframes are the key areas on a vehicle this age — structural rust is hard to spot without getting underneath. A mechanic will check all of this before you commit, and give you a concrete basis to negotiate on price. Inspection →
📄 Outstanding finance, insurance write-offs and clocking won't appear in the MOT records — a dedicated history check covers all of this. Our link gets you 20% off automatically. History Get 20% off via CarHunch

Pass Rate by Fuel Type

Fuel type	Vehicles	Pass rate	Avg failures
Petrol (74%)	425	92.9%	0.41
Diesel (26%)	146	91.5%	0.49

Colour Breakdown

Based on 77,010 Mercedes Benz B Class vehicles registered in the UK — across all years. From DVLA registration records.

Black 24.5%

18,872

Silver 22.4%

17,281

Grey 19.2%

14,820

Blue 17%

13,065

White 9.9%

7,612

Red 4.9%

3,768

Gold 0.6%

441

Purple 0.5%

393

Brown 0.4%

285

Bronze 0.2%

182

Green 0.2%

149

Beige 0.2%

142

Mileage Distribution

Most 2019 Mercedes Benz B Class vehicles sit in the blue band. If the vehicle you're looking at is outside it, it's either unusually low or high mileage for its age.

23,036

typical

15,704

low mileage

31,414

high mileage

Half of all 2019 Mercedes Benz B Class vehicles fall between 15,704 and 31,414 miles.

Is the mileage you're seeing normal?

✓ Under 15,704 miles — lower than most. Could be great, or could be a vehicle that rarely moved. Check test frequency and mileage progression in the MOT history.

✓ 15,704–31,414 miles — normal for age. This is where most 2019 Mercedes Benz B Classs sit.

⚠ Over 42,408 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2019 Mercedes Benz B Class — Still on the Road

Almost all 2019 Mercedes Benz B Classs are still on the road.

Strong survival — 558 vehicles still getting MOTs in 2025, 100% of the peak.

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2021–2025.

MOT History Averages

4.8

Avg MOT tests per vehicle

0.43

Avg failures per vehicle

2.8

Avg advisories per vehicle

Other model years — Mercedes Benz B Class: All B Class years → Which year to buy? →

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Compare with another model

See how the 2019 Mercedes Benz B Class stacks up against a rival.

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